High-Performance Analog Optimized for DaVinci Technology

PCA9306: I2C Level Shifter

PCA9306: Dual Bi-Directional I2C-Bus and SMBus Voltage Level-Translator

PCA9306: IC Level Shifter Diagram

(1) The applied voltages at VREF1 and VDPU should be such that VREF2 is at least 1 V higher than VREF1 for best translator operation.

Benefits

  • IC and SMBus Compatible
  • Provides Bidirectional Voltage Translation With No Direction Pin
  • Accommodates Standard Mode and Fast Mode IC Devices and Multiple Masters
  • Flow-Through Pin-out for Ease of PCB Trace Routing

Features

  • Less than 1.5-ns Maximum Propagation Delay
  • Low 3.5-Ω ON-State Connection Between Input and Output Ports Provides Less Signal Distortion
  • Open-Drain IC I/O Ports (SCL1, SDA1, SCL2, SDA2)
  • 5-V Tolerant IC I/O Port to Support Mixed-Mode Signal Operation
  • High Impedance SCL1, SDA1, SCL2, and SDA2 Pins for EN=Low

Applications

  • Mixed-Mode Voltage Applications
  • IC Bus Isolation
    





VREF1 VDPU
1.2-V 2.5-V
3.3-V
5-V
1.5-V 2.5-V
3.3-V
5-V
1.8-V 3.3-V
5-V
2.5-V 5-V
3.3-V 5-V